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CVE-2024-39929 — Detection method for Exim vulnerability CVE-2024-39929 | Kitploit
Tools/GitHubGitHub/rxerium/cve-2024-39929
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GitHubrxerium/cve-2024-39929

CVE-2024-39929

Detection method for Exim vulnerability CVE-2024-39929

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31811 months agoNot yet reviewed

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CVE-2024-39929 PoC

Vulnerability Brief

Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.

How does this detection method work?

Versions through 4.97.1 are vulnerable to this vulnerability. This template version matches for any instances of Exim prior to and including 4.87.1.

How do I run this script?

  1. Download Nuclei from here
  2. Copy the template to your local system
  3. Run the following command: nuclei -u https://yourHost.com -t template.yaml

References

  • https://thehackernews.com/2024/07/critical-exim-mail-server-vulnerability.html
  • https://nvd.nist.gov/vuln/detail/CVE-2024-39929
  • https://github.com/Exim/exim

Disclaimer

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Use at your own risk, I will not be responsible for illegal activities you conduct on infrastructure you do not own or have permission to scan.

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